Riley’s Rumble Half Marathon 2023

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Riley’s Rumble Half Marathon 2023

July 30 @ 7:30 am - 11:00 am




Come run the infamous Riley’s Rumble Half Marathon for a challenging and rewarding race experience.

Do you love running hills? Do you love running in summer heat? Does the DC area humidity inspire you to get out and sweat it out?  If you said yes to any of these questions, or even if you didn’t, come out & join us — you won’t regret it!  It’s generally understood that Riley’s Rumble is not a good idea for your first half marathon, but that depends on your personal level of crazy!





MCRRC Members –

This race is part of our low-key race series and is FREE for MCRRC members.  Race registration is not required for members; however, members must signup for a 2023 bib & chip. If you have a 2022 (or older) chip, please bring it with you to exchange for your 2023 bib & chip.  If you are a new member, or no longer have an older chip, please remember to bring a $5 chip deposit with you.

*** If you already requested a personalized 2023 bib, you do NOT need to register online – your bib will be waiting for you at registration.

Non-MCRRC Members –

Registration will open to non-MCRRC members at a cost of $30 for participants ages 18 & over and $20 for participants under 18.  Online registration will remain open until the start of the race.  Late registrants may register online before leaving the house or from your smartphone at the race site.  Please remember to bring your credit card or cash with you if you plan to register on race morning. Non-members can signup here.

Bib and chip pickup will take place on race morning near the start area.  A volunteer will be on hand to assist you.



Registration and bib/chip pickup open on race morning at 6:30 AM. Try to arrive no later than 7 AM to help us get everyone through the line.



Our permits require that participants not exceed 15 minutes per mile.  Please do not attempt Riley’s Rumble if you are not confident of completing the course at that pace.



Water, Gatorade, and ice will be provided every two to three miles along the course and at the start/finish. Popsicles will be provided just after the turnaround between mile 8 and 9. (Popsicle Protocol: Just before the turnaround, yell out your flavor preference and after the turnaround, the volunteers will have it ready for you!)

There will be port-o-johns at the start/finish, but not along the course. Beware of venturing off-road – poison ivy is rampant in the forest.  Plus, the sight of you “relieving yourself” could be uncomfortable for both you and other participants!

Energy gels will no longer be provided.  Participants must carry their own supplements.



Watermelon, bananas, and other refreshments will be available at the finish. There are no awards, t-shirts, or finisher medals. You won’t need a finisher medal to remember you have done Riley’s.



MCRRC is a volunteer organization and our events are fully staffed by the hard work of our volunteers.  Without them, our races wouldn’t be possible. Volunteers are needed for this event.  Please signup here to volunteer!



Typically, Riley’s Rumble weather is hot, humid, and sunny. Adjust your pace and expectations.  If it is raining, be prepared to get wet.  In the event of dangerous conditions (lightning, excessive heat, blizzard, etc.) the race may be delayed, canceled, or turned in to a fun run (i.e. times and order of finish will not be recorded) at the discretion of the race directors.



If you are a non-MCRRC member, and can no longer attend the race, please contact so that we can move your registration to another MCRRC low-key event and open up a spot for someone else.  Monetary refunds will not be provided.


July 30
7:30 am - 11:00 am
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Kimberly Price


South Germantown Recreational Park – Maryland SoccerPlex
18031 Central Park Circle
Boyds, MD 20841 United States
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